using System using System Collections Generic using System Linq using

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MMCG_lab_8_9
{
    public class Point3D
    {
        public double X { get; set; }
        public double Y { get; set; }
        public double Z { get; set; }
        public Point3D(double x, double y, double z)
        {
            X = x;
            Y = y;
            Z = z;
        }
        public Point3D()
        {
            X = 0;
            Y = 0;
            Z = 0;
        }

        public double scal(Point3D b)
        {
            return this.X * b.X + this.Y * b.Y + this.Z * b.Z;
        }
        public Point3D vect(Point3D vect)
        {
            return new Point3D(Y * vect.Z - Z * vect.Y, Z * vect.X - X * vect.Z, X * vect.Y - Y * vect.X);
        }
    }
}